Extra atomic ops

Hi, Jules. Could you add the missing atomic ops as per:
http://msdn2.microsoft.com/en-us/library/ms684122.aspx and http://developer.apple.com/documentation/Darwin/Reference/KernelIOKitFramework/OSAtomic/ ?

Mostly interested in the swap and compare/swap ops, mind you…

TIA
/R

ok, will see what I can do.